Carl had a total of 297 notes. The notes are $2 notes and $5 notes. After he spent 75% of the $2 notes and 60% of the $5 notes on one refrigerator, he was left with 5 times as many $5 notes as $2 notes. How much did the refrigerator cost?

	$2	$5
Before	4x2 = 8 u	5x5 = 25 u
Change	- 3x2 = - 6 u	- 3x5 = - 15 u
After	1x2 = 2 u	2x5 = 10 u
Comparing $2 and $5 in the end	1x2  = 2 u	5x2 = 10 u

75% of $2 notes = ⁷⁵
₁₀₀ of $2 notes = ³₄ of $2 notes
60% of $5 notes = ⁶⁰₁₀₀ of $5 notes = ³₅ of $5 notes

The number of $2 notes in the end is repeated.  Make the number of $2 notes the same.  LCM of 2 and 5 is 10.

The number of $5 notes in the end is repeated. Make the number of $5 notes the same. LCM of 1 and 2 is 2.

Number of notes at first
= 8 u + 25 u
= 33 u

33 u = 297

1 u = 297 ÷ 33 = 9

	$2	$5
Number	6 u	15 u
Value	2	5
Total value	12 u	75 u

Value of $2 spent
= 6 u x 2
= 12 u

Value of $5 spent
= 15 u x 5
= 75 u

Price of the refrigerator
= 12 u + 75 u
= 87 u
= 87 x 9
= $783

Answer(s): $783